Exercising generator and A/C after winterizing question?

Golferdude, you could use a little time learning the concepts of your camper systems. Will help you down the road. (Literally and figuratively).
Why do you need to “exercise” the genny 1 more time?
Is it propane? Then no worry about bad gas.
Just change the oil? If not maybe you should, not really pertinent to this discussion though. But a reason to warm it up.
Gas stability? This is real if it’s gasoline powered. Stabilize some fresh fuel or throw some Av gas in it for the winter and run it.